Controlling OSPFv3 Routing Information

Configuring OSPFv3 Route Aggregation

An ABR can summarize routes with the same prefix into one LSA and advertise the summarized route in other areas. An ASBR can also summarize imported routes with the same prefix into one LSA and then advertise the summarized route to other areas. This can reduce the size of the LSDB in other areas.

Configuring OSPFv3 to Filter Received Routes

By configuring filtering conditions for routing information, you can allow only the routes that pass the filtering to be received or advertised.

Configuring OSPFv3 to Import External Routes

If not only OSPFv3, but also other routing protocols or OSPFv3 in other processes run on all FW, you can configure OSPFv3 to import the routes generated by other routing protocols, and advertise these routes using LSA.

Configuring OSPFv3 to Filter LSAs in an Area

Filtering LSAs in an area can prevent unnecessary LSA transmission. This reduces the size of the LSDB on the neighboring router and speeds up network convergence.